Well preworkout can be deleterious to the process of CKD and postworkout your working with a handful of carbs to begin with, so what using 5-10 carbs I don't see the point, it hasn't made any real difference for my progress.

TKD is different however, its somewhere around 25-50 carbs post workout and preworkout is 5 carbs for about every 2 sets you perform in the gym on that workout. With heavy training that drains glycogen you'll need more, so you'll have a split the carb intake before you workout, you can intake during as well.